Dry shaving apparatus



2,53Ll19l G. BARSCH DRY SHAVING APPARATUS Nw., El, W5@ v 2 Sheets-Sheet l Filed March 18, 1948 llllllllll llll ll llllll Awww Wma 2R, R95@ GBARSCH Zpwn DRY SHAVING APPARATUS Filed March 18, 1948 2 Sheets- Sheet 2 DE@ i h MM.

o0 oooo u Patented Nov. 21, 1950 DRY SHAVING APPARATUS Guillaume Bai-sch, Geneva, Switzerland Application March 18, 1948, Serial No. 15,673 In Switzerland June 17, 1947 The present invention relates to a dry shaving apparatus, including at least one cutting member and at least one abrading member mounted on a body rotating within a sheath provided with openings, comprising means allowing the removal and the positioning of the cutting and abrading members rapidly and without tumbling. In a preferred embodiment, the said body is provided with a central part driven by a driving shaft and comprising at its ends cheeks which receive the ends of the above-mentioned members, one of these cheeks being provided with openings within each of which is engaged a lug extending from one of the ends of each of these members, whereas the other cheek comprises radial slots into each of which is engaged a lug provided at the Opposite end of each of these members, a holding member being mounted around at least one part of the said slotted cheek to hold radially these lugs in working position, this holding member having an opening capable of coinciding in succession with the various slots, when it is made to rotate around the cheek which it carries, in order then to allow free passage for the corresponding lug and thus permit, with ease and without fumbling, the positioning and removal of the above-mentioned members.

The accompanying drawing shows, by way of example, an embodiment or" the dry shaving apparatus according to the invention.

Fig. l is an elevation view of the rotating body included in the apparatus, the sheath surrounding this body being removed.

Fig. 2 is a plan view corresponding to Fig. 1.

Fig. 3 is a longitudinal sectional View according to III-III of Fig. 2.

Fig. 4 is a cross sectional View according to IV-IV of Fig. 3, it being understood that certain members are removed.

Fig. 5 shows a detail in elevation.

Fig. 6 is a view from below corresponding to Fig. 5.

Fig. '7 is an outer view, in elevation, of the head of the apparatus showing the sheath.

Fig. 8 is a plan view corresponding to Fig. 7, partially in section.

Fig. 9 is a detail View in vertical section.

Fig. 10 is a perspective detail view.

Fig. 1l is an elevational view on the opposite side to that according to which the apparatus is viewed in Fig. 7

The dry shaving apparatus shown in the drawing includes a rotating body formed of a cylindrical portion l and two cheeks 2, 3 fixed to a shaft 4 driven by a motor not shown. This body 8 Claims. (Cl. 30-34) rotates within a sheath 5, of cylindrical shape, secured by bayonet joint, as shown at to the base l of the shaving apparatus.

On the rotating body I, 2, 3 are mounted two main cutting members 8, two auxiliary cutting members 9 and two abrading members i0. The members oi each of these pairs are placed in diametrically opposed positions and are angularly spaced at with respect to each other. (See Fig. 2.) These cutting and abrading members are arranged to act alternately on the surface to be shaved when the sheath 5, which is provided with openings as shown in Fig. 7, is applied against this surface. The cutting members then 'shear the hairs extending through these openings, and the abrading members sort oi grind down the remaining part of the hairs thus cut, so as' to shave very closely the part of the skin extending slightly inside each of the openings in the sheath 5.

The cheek 2 is provided with six openings ll each of which is designed to receive a lug I2 extending from one of the ends of each of the members 8, 9 and ID. The other cheek, 3, has six radial slots I3, into each one of which extends a lug Ill provided at the opposite end of each of the members 8, 9 and I9. A holding member i5, cupshaped, is mounted around one part of the said slotted cheek 3. The cylindrical part of this holding member I5 has a radial slot I6 which, when the member I5 is made to rotate by hand around the cheek 3, may be brought successively in registry with each of the slots i3. When the slot i5 occupies an intermediate position between the two slots I3, the cylindrical part of the member I3 radially holds the lugs I4 which bear against it under the action oi the centrifugal force due to the rotation of the rotating body I, 2, 3. This holding member l5 thus holds the lugs I4 in working position. When, on the other hand, the slot I6 coincides with any one of the slots I3, the lug I4 may easily be freed from the corresponding slot I3, by pulling radially outwards the corresponding end of the member to which it belongs. Once the lug I4 has been freed from the cheek 3, the lug I2 may be withdrawn at ease from the corresponding opening l I of the cheek 2. Thus, each of the members 8, 9, IG may easily be removed or placed in position through a very simple operation.

The bottom of the cup, formed by the member I5, is interiorly provided with a series of swells Il, spaced at 30 from each other and obtained by embossing themetal of this bottom. These swells, twelve in number, are arranged to co,

' 3 operate with twelve notches I8 of a cylindrical part belonging to the cheek 3. A flexible metallic ring I9 is interposed between the outer surface of the bottom of the member I and the conical end portion 2li1 of the central part I, to urge continual cooperation of the parts I1 and I8. It will readily be understood that, when the projecting parts I'I are each engaged in one of the notches IS, thezmember I5 will'v be stable Aand be prevented` from accidental rotation aboutI the cheek 3. On the other hand, through hand operation of the milled outer surface 2| of the member I5, this latter may be made to rotate. with respect to the cheek 3 so as to bring it into any desired angular position with respect-v toY this.

cheek.

The abrading members shown in the drawing are each formed by an abrasive stone I0, a part of which is of general cylindrical shape 22'; provided with oblique slots123. The main cutting members 8 are formedof metallic blades whose cutting portion Eli'conprises'a seriesof slanting edges, as shown more clearly in Fig. l. The cutting portion li'moves practically in contact with the inner surface of. the perforated sheath 5. This sheath, in the perforated part applied to the surface to be shaved, is of very small thickness, for example of the order. of 5/100 mm. The cylindrical surface- 22, of the abrading members Ill rotates at a short distance from the inner surface of the sheath 5, but without contacting the same. The auxiliary cutting members 9 are formed as. follows; as in the case of the members 9;,theyl comprise a metallic blade each arranged on the rotating body along a'radial plane with respect tothe axisof this body, but instead of being provided lwith a cutting part all along one of their longer sides, the active-part of the members 9 is composed of two cutting parts 25, 28 merely at right angles to each other (Figs.v 3 and 9) and rotating Within the sheath 5, one opposite one of the ends of its cylindrical part, and the otheropposite the adjacent endY part 2t', planeshaped, of this sheath.

In this region of the sheath, the openings are formed by slots 28. These slots are obliquely arranged with respect'to the axis of the rotating body and extend along the common circular edge 2910i the adjacent regions, respectively cylindrical and plane', of this sheath. The reason for such an arrangement is to permit of closeshaving, in places where little room is available, by applying the edge 29 to the region to be. shaved.

According to Fig. l0, there is shown a modiiication of the slots siwhichare radial instead of being oblique; The space remaining between adjacent slots constitutes a kind'of tooth and, as shown inFig. .10, every other :tooth discloses across slot 3D.

A spring 'holds the cutting part 2S of the:

members 9 in the working position, in contact withthe bottom surface 2l.

Thepart of theV sheath 5, whichisappliedto,

designed for the automaticremoval ofthe cut'- hairs underthe action ofzrotationof the rotating body I, 2, 3. A lid 34; pivoting at '35km the'sneath 5, vembraces half vthe periphery of this body, in order to hidethe large holes 33.'. Forcleaning purposes; it is merely necessaryytoseparate the.

4 part 34 from the sheath 5, by making it pivot at 35. The cut hairs which are then deposited on the inner surface of 34, may thus easily be removed, by simple blowing or with a small brush.

What I claim is:

1. In a dry shaving apparatus including a cylindrical sheath, a body rotating inside the sheath, and at least one cutting and one abrading' member mounted on the body, the sheath having openings there-in before-which the cutting and abrading members pass alternately, the improvement which consists in the body comprising a central portion having a drive shaft extending axially therefrom, and a pair of end cheeks rigidly connected to the central portion, one cheek having holes and the other radial slots therein, the cutting and abrading members having lugs at both ends for engaging respectively in the holes of one cheek and the slots of the other, and a holding member rotatably mounted on the slottedcheek and having an aperture therein registeringin turn'with each of the slots thereby to permitdisengagement of each lug from the enveloping slot as the aperture of the holding member is Ypresented to each slot in turn.

2. vAn apparatus according to claim l wherein thezslotted cheek and holding member arel provided with complementary notches and bosses, the holding member being slightly axiallyslidableA to permit disengagement of the bosses from the notches, and spring'meansvyieldably retain'-r ingk the bosses in the notches, the bosses and notches being so disposed that the holding member is` held inv holding and disengaging position 0f the lugs against accidental displacement therefrom.

3; An apparatus according toclaim l wherein eachcutting member comprises a blade located in a radial plane of the body.

4. An apparatus according to claim 3 wherein the cutting edge of the blade, whenthe body rotates, is almost in contact with .the inner surface oi the sheath .at the point thereof where the openings are provided, thereby to shear almost all thatpart of the bristles penetrating through the openings.l

5. An apparatusaccording to claim l wherein the each abrading member comprises a stone having an. abrading surface arranged to rotate: past the inner surface of .the sheath at the pointy thereof where the openings are provided.

6. An apparatus according to claim 5 wherein the abrading surface of th'e stone, when the bodyV rotates, is almost in contact with the .inner surfaeeoi the sheath.

7. An apparatus according to claim lv wherein at least one cutting member comprises a blade having two cutting edges substantiallyat right angles to one another, oneedge rotating in a.

plane parallel and closely adjacent to a plane end'of'the sheath and thef other opposite` the cylindrical end portion thereof, the planeiend and cylindrical end pcrtion'of the sheath being provided with slots each extending on both sides.

of the circular. edge common tonsaidtend 'and portion.

8. An apparatus according to claim l wherein a portion ofthe cylindrical sheath is provided with a series of relatively large apertures to permitA automatic removal of cut and abraded bristles, and a removal lid covering said apertures.

GUILLAUME BARSCH.

(References ,onifollowing' .pa-ge) 5 REFERENCES CITED Number The following references are of record in the 2,269,875 le of this patent: 2321932 2,323,745 UNITED STATES PATENTS Number Name Date 646,065 Bugh Mar. 27, 1900 Number 2,263,016 canins Aug. 19, 1941 Name Date Huntington Jan. 13, 1942 Nyhagen June 15, 1943 Wildeboor July 6, 1943 FOREIGN PATENTS Country Date Great Britain Dec. 10, 1931 

